Unincorporated Brown County, Texas requires a $20 Development Permit before construction, structure placement or land-disturbing work; this is separate from a general residential building-code permit1. Brown County administers septic permitting and inspections, including review of registered systems23. Inside Early, the city also requires building permits for new construction, remodeling or moving in a pre-built building4.
At a glance
- Building permit
- $20 Development Permit required; it is not prior building-code approval56
- Zoning
- No county zoning in unincorporated areas7
- Septic
- Brown County administers OSSF permits; $210 for tracts of 10 acres or less, with registration for larger tracts89
- RVs at Lake Brownwood
- Only temporary parking in the flood hazard area: under 180 days, highway-ready, no permanent additions10
- Manufactured home
- Must be installed to Texas Department of Housing and Community Affairs standards statewide11
- Owner electrical work
- State electrician license not required when you own and live in the dwelling; local rules may still apply12
- Driveway on a state highway
- TxDOT Form 1058 driveway permit required before construction in the right-of-way13
Who to call
Septic permits
Brown County Permit Office (OSSF / Septic Permitting)
OSSF (septic) permits and registrations for Brown County, issued by the county's Inspector/Designated Representative
200 S Broadway, Rm. 322, Brownwood, TX 76801
Floodplain permits
Brown County Permit Office (Development & Floodplain Permitting)
Development permits (construction, structure placement, dredging, fill) and floodplain/Lake Brownwood flood-hazard-area permitting for Brown County
200 S Broadway, Rm. 322, Brownwood, TX 76801
Contact details are copied from each office’s official page and were checked against it on October 11, 2026.
Off-grid gear
Going off-grid in Brown County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Brown County, Texas?
Unincorporated Brown County requires a $20 Development Permit before construction, structure placement, dredging, alteration of land or waterways, or placement of fill1. The application requires a legal plat, a 911 address and the fee; a project in a flood area also requires planning materials14. The development permit does not establish a general residential building-code permit program15. Brown County’s adoption of the separate Texas residential-code inspection framework could not be confirmed; ask the Permit Office whether builder-arranged code inspections apply1610.
Who issues development, building and septic permits in Brown County?
The Brown County Permit Office handles Development Permits and floodplain work, while its Inspector/Designated Representative administers septic permitting and inspections102. Contact the Permit Office using the details listed on this page for county development and septic applications1417. In Early, city building permits are required for new construction, remodeling or moving in a pre-built building; submit drawings or plans, estimated cost and square footage to City Hall4. Septic permitting remains with Brown County2. County floodplain development inspections cost $100 for two inspections, with additional inspections at $50 each; that fee schedule does not establish general building-code inspections for every home18.
Does Brown County have zoning?
Unincorporated Brown County has no county zoning rule for minimum dwelling size, minimum lot size, setbacks, lot coverage, building height, accessory dwellings, RV occupancy or tiny-home occupancy7. County Development Permits still apply before construction or structure placement, and floodplain projects require additional planning materials1. Septic systems remain subject to county permitting or registration and inspection, so a lack of zoning does not remove sewage requirements193. Texas installation standards also apply to manufactured homes, and an uninstalled manufactured home may be occupied only for viewing on a retailer’s sales lot11.
How do septic permits work in Brown County, Texas?
Brown County can review and inspect every OSSF, including registered systems, and grants a permit to operate after successful inspection3. An OSSF permit is required before installing, modifying or repairing a septic system on a tract of 10 acres or less; larger tracts require registration with a site evaluation, layout and legal description14. Under the county's OSSF rules, a single-residence system on a tract of 10 acres or larger is exempt from permitting but must be registered, and its sewage disposal line must sit at least 100 feet from the tract property line20. The two published rules overlap on a tract of exactly 10 acres, so ask the Permit Office whether that tract needs a permit or a registration920. Lots within 1,000 feet of the Lake Brownwood shoreline need a site sewage disposal plan from a Professional Engineer or Registered Sanitarian, and no system may be built in the regulated floodway20. The permit costs $210 and includes two inspections, while larger-tract registration costs $2521. Authorization to construct lasts one calendar year unless the installer requests a construction inspection within that period22. Only about 5.9% of Brown County soils are rated without severe limits for a conventional drain field, so obtain the site evaluation early23.
Can you live in an RV or tiny home on your land in Brown County?
An RV or tiny home in unincorporated Brown County still needs county approval for structure placement and regulated sewage disposal119. A qualifying single-residence septic system on a tract of at least 10 acres may be exempt from permitting only if the sewage disposal line is at least 100 feet from the property line; registration and applicable installation and operating rules remain required19. In the Lake Brownwood flood hazard area, an RV may be parked temporarily for less than 180 days and must be fully licensed and ready for highway use10. Ask the Permit Office whether the parcel falls inside that mapped area10. Manufactured homes remain subject to statewide installation standards11.
How do you build a home in Brown County? The steps, in order
- Confirm the parcel’s jurisdiction; inside Early, apply to City Hall for building permits for new construction, remodeling or a pre-built building4.
- If dividing land, determine whether a subdivision plat is required; qualifying agricultural divisions may be exempt while the qualifying primary use continues2425.
- Present a required subdivision plat to the County Clerk with the review fee, a full-size white copy and a flash drive with coordinates; Brown County Surveyor approval precedes final recording26.
- Apply to the Permit Office for the $20 Development Permit with a legal plat and 911 address before construction or structure placement1.
- For floodplain work, include planning materials and budget $100 for two inspections127.
- Apply for the applicable septic permit or registration and arrange inspection; registered systems also remain subject to county inspection143.
- Ask the Permit Office whether builder-arranged residential-code inspections apply; Brown County’s adoption could not be confirmed1610.
- Obtain a TxDOT permit before building a driveway in a state-highway right-of-way13.
What should you check before buying land in Brown County?
Septic: only about 5.9% of Brown County soils are rated without severe limits for a conventional drain field, so get a site evaluation before assuming a standard system will work23. Flood: county floodplain development inspections cost $100 for two inspections, with additional inspections at $50 each27. Division: required subdivision plats go first to the County Clerk and need Brown County Surveyor approval; review fees depend on plat size, with recording paid separately26. Taxes: agricultural special appraisal requires principally agricultural use at locally accepted intensity and agricultural or timber production for at least five of the past seven years; a change to non-agricultural use can trigger rollback taxes for the previous three years28. Ask the Brown County Appraisal District about qualification before treating agricultural appraisal as permanent tax savings28. County effective property tax is about 1.2%, with a median annual bill near $1,7272930.
Watch-outs
- Brown County's $20 Development Permit is required before residential construction, structure placement or land-disturbing work, but it is not prior building-code approval56.
- Brown County's adoption of the conditional residential-code inspection program, certificates of occupancy, a general owner-builder permit exemption, county-road driveway permits, short-term rentals and well permits could not be confirmed; ask the Permit Office before assuming any requirement is waived1617.
- The 180-day RV rule described here applies specifically to the mapped Lake Brownwood flood hazard area, not to the whole county; confirm with the Permit Office whether a specific parcel falls inside that area10.
Sources
- Brown County Permit Pamphlet, quoted and re-checked
- Permitting, quoted and re-checked
- Order Adopting Rules of Brown County, Texas, quoted and re-checked
- Early: Permits & Inspections (Brown County), quoted and re-checked
- Brown County Permit Pamphlet 2023, quoted and re-checked
- Texas Local Government Code Chapter 233, quoted and re-checked
- Texas law on county zoning and building authority
- Permitting, quoted and re-checked
- Lake Brownwood Permit Pamphlet, quoted and re-checked
- Brown County Permit Office (Development & Floodplain Permitting) (browncountytx.gov)
- Occupations Code Chapter 1201, Manufactured Housing, quoted and re-checked
- Exemptions to Electrician Licensing, quoted and re-checked
- Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
- Permitting, quoted and re-checked
- Brown County Permit Pamphlet, quoted and re-checked
- Texas Local Government Code Chapter 233, quoted and re-checked
- Brown County Permit Office (OSSF / Septic Permitting) (browncountytx.gov)
- Brown County Permit Pamphlet, quoted and re-checked
- Order Adopting Rules of Brown County, Texas, quoted and re-checked
- Order Adopting Rules of Brown County, Texas, quoted and re-checked
- Lake Brownwood permitting pamphlet, quoted and re-checked
- OSSF Permit Application Packet, quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Texas Local Government Code, Section 232.001, quoted and re-checked
- Texas Local Government Code, Chapter 232, quoted and re-checked
- Fees and Requirements for Filing Plats / Filing Order Review Process for Subdivision Plats, quoted and re-checked
- Brown County Permit Pamphlet, quoted and re-checked
- Agricultural, Timberland and Wildlife Management Use Special Appraisal, quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.